/Engine/Plugins/Runtime/nDisplayModularFeatures/Source/DisplayClusterLightCardExtender/Public/StageActor/IDisplayClusterStageActor.h
Return the property name for an owning struct containing the positional params properties, may be NAME_None if a struct isn't used
virtual [FName](API\Runtime\Core\UObject\FName) GetPositionalPropertiesMemberName() const